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The 2013 Billboard Music Awards were full of stellar performances from stars of every imaginable genre and style -- like Taylor Swift, Justin Bieber, Selena Gomez, Chris Brown and more!

Following a glowing introduction by Hayden Panettiere, Macklemore and Ryan Lewis took the stage at the Wynn Las Vegas to perform their hit song ‘Thrift Shop’ at the 2013 Billboard Music Awards tonight (May 19).

For Carly Rae Jepsen, her smash hit song 'Call Me Maybe' is the gift that keeps on giving! Her feel-good anthem took home the award for Top Digital Song at the 2013 Billboard Music Awards.

Macklemore + Ryan Lewis won Best Rap Song for 'Thrift Shop' at the 2013 Billboard Music Awards tonight (May 19).

At the 2013 Billboard Music Awards, Taylor Swift was '22' going on 16. Rocking skintight, high-waisted shorts and a unicorn T-shirt, Swift took a tour of the Las Vegas venue before taking the stage.

Selena Gomez followed an impressive performance by Bruno Mars on tonight’s (May 19) Billboard Music Awards. The young songstress stayed true to her ongoing — not to mention controversial — Indian-inspired theme with a live delivery of her latest single, ‘Come & Get It.’

Swedish duo Icona Pop stormed the stage at the 2013 Billboard Music Awards tonight (May 19), performing their smash hit 'I Love It (I Don't Care).'

For the umpteenth time in her career, Nicki Minaj is taking the old boys club of the hip-hop world and turning it on it's head. With her win for Top Rap Artist at the 2013 Billboard Music Awards, she seems to be usurping the throne from rappers of the past.

The 2013 Billboard Music Awards kicked off with a bang in the form of Bruno Mars. Mars and his Smeezington buddies were clad in red pants, red jackets and black shirts. He let his curls run free, not topping his outfit with his usual fedora. There were horns, guitars, drums and, of course, that voice!

The 2013 Billboard Music Awards went down tonight (May 19) in Las Vegas! We kept track of all the winners while the show was happening, especially nod leaders Taylor Swift, Maroon 5, fun. and Rihanna. Swift took home three awards; some were obvious like the Top Billboard 200 album ('Red' was KILLER on the charts in the last year) and Top Country Artist...

Members of high-profile former couples, no matter how cordial or amicable their split, don't usually sit next to one another at industry awards shows. In fact, they often can make the request to event producers to put distance between themselves and their exes. That's not what's happening with Justin Bieber and Selena Gomez at the 2013 Billboard Music Awards.

Adam Levine took to the stage on 'Jimmy Kimmel Live,' and as anyone who's ever seen 'The Voice' knows, he's a bit of a hoot. When he chatted with comic Kimmel, it got hilarious pretty quickly.